Simson KR 51/2 Schwalbe 1985. Excellent stopper, fit and installation seamless. After inserting into the faucet, I recommend soaking with gasoline - then we immediately have a full seal tightness of the gasket. Photo from several hours of testing.
Recommended.
Esthetics:
Material quality:
Fitting:
Reliable opinion
We have Motorcycle fuel system - parts to MZ ES 300